! +====================+ ! | PED OUTPUT PRODUCT | ! +====================+ ! ! /spectre/data1/aroman/proposals/6801.prop ! Generated by PREPROCESSOR, version 6.3f ! Date: Tue Jul 09 16:42:14 EDT 1996 Proposal_Information Title: C and N Production and Pollution Mechanisms in Low-Metallicity Extragalactic HII Regions Proposal_Category: GO Scientific_Category: GALAXIES & CLUSTERS Cycle: 6 Investigators PI_Name: Henry A. Kobulnicky PI_Institution: University of Minnesota CoI_Name: Evan Skillman CoI_Institution: University of Minnesota Contact: N Abstract: We propose a simple test to differentiate between several hypotheses describing carbon and nitrogen production in low- metallicity extra-galactic HII regions. Our primary goal is to obtain FOS UV spectra to measure directly the nebular carbon abundance in four dwarf galaxies with similar metallicity (O/H), but very different N abundances. By holding O/H constant, we avoid uncertainties due to the possible effects of metallicity-dependent stellar yields or C depletion. We will be able to address 1) whether the large scatter in N/O at a given metallicity is the result of short term, localized N pollution from the winds of massive stars, 2) whether the C/O ratio also exhibits a large scatter at a given metallicity that might be expected if C pollution also occurs or is delayed relative to N, and 3) the extent to which N and C production are coupled, as expected if they are both produced mostly in intermediate mass stars. The results of this program will have repercussions for primordial abundance, chemical evolution, and other studies using Delta(element1)/Delta(element2) type relations. FOS spectra from 1600Angstrom\ to 6800Angstrom\ with the same 1"\ aperture will allow us to measure several ionization species and minimize uncertainties caused by unknown interstellar reddening and ionization correction factors that have plagued other UV spectroscopic studies. We will measure the UV lines O III LambdaLambda1661 -- 1666 and C III LambdaLambda1907 -- 1909 simultaneously, which will enable us to measure the C^++/O^++ ratios with relatively little uncertainty. Questions Observing_Description: We have obtained high quality, multi-position, ground-based spectroscopic data of the primary target NGC 4861 which can be used to determine the electron densities, temperatures, nitrogen abundances, and line ratios for exposure time estimates. To minimize error introduced by applying extinction corrections and temperature estimates from ground- based spectra which employed different slit size and placement, we intend to obtain spectra using four gratings covering the range 1600Angstrom\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ to 6800Angstrom . G190H contains the crucial O III LambdaLambda1661 -- 1666 and C III LambdaLambda1907 -- 1909 lines used to determine the C^++/O^++ ratios virtually unaffected by reddening uncertainties. (A detection of N III LambdaLambda1748 -- 1754 would be a bonus, but is probably unlikely given the results of Garnett Etal\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ (1995).) The G270H grating contains the C II Lambda2326 line useful for constraining the ionization correction factor (ICF) carbon. Grating G400H contains the higher Balmer series lines for one determination of the reddening and the O II Lambda3727 line for determining the oxygen ICF. Grating G570H contains HAlpha and HBeta for establishing the reddening correction, and O III Lambda4959 and O III Lambda5007 lines to be used in determining the oxygen abundance. An electron temperature from our ground based spectroscopic mapping of Lambda4363 will be assumed. centerlineTable 1 centerlineLine Flux and Integration Time Estimates for Primary Target centerlineNGC 4861 begintabbing XXXXXXXXXXLine \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\= XXXXXXF (erg s^-1 cm^-2 arcsec^-1 \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\= XXXXGrating \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\= XXXXExp. Time (s) Line \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\> F (erg s^-1 cm^-2 arcsec^-1) \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\> Grating \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\> Exp. Time (s) , HBeta Lambda4861 \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\> 1times10^-13 \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\> G570H \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\> 120 , O III Lambda1666 \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\> 2times10^-14 \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\> G190H \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\> 1200 , C II Lambda2326 \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\> 2times10^-15 \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\> G270H \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\> 300 , O II Lambda3727 \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\> 1times10^- 13 \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\> G400H \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\> 120 , O III Lambda4959 \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\> 2times10^-13 \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\> G570H \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\> 120 , endtabbing centerlineTable 2 centerlineLine Flux and Integration Time Estimates for Primary Target centerlineUM469 begintabbing XXXXXXXXXXLine \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\= XXXXXXF (erg s^-1 cm^-2 arcsec^-1 \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\= XXXXGrating \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\= XXXXExp. Time (s) Line \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\> F (erg s^-1 cm^-2 arcsec^-1) \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\> Grating \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\> Exp. Time (s) , HBeta Lambda4861 \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\> 2times10^-14 \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\> G570H \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\> 300 , O III Lambda1666 \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\> 4times10^-15 \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\> G190H \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\> 3600 , C II Lambda2326 \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\> 4times10^-16 \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\> G270H \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\> 900 , O II Lambda3727 \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\> 2times10^-14 \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\> G400H \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\> 300 , O III Lambda4959 \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\> 3times10^-13 \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\> G570H \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\> 300 , endtabbing centerlineTable 3 centerlineLine Flux and Integration Time Estimates for secondary sources centerlineT1345-420 and T1304 -386 begintabbing XXXXXXXXXXLine \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\= XXXXXXF (erg s^-1 cm^-2 arcsec^-1 \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\= XXXXGrating \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\= XXXXExp. Time (s) Line \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\> F (erg s^-1 cm^-2 arcsec^-1) \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\> Grating \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\> Exp. Time (s) , HBeta Lambda4861 \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\> 5times10^-14 \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\> G570H \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\> 300 , O III Lambda1666 \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\> 1times10^-14 \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\> G190H \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\> 1800 , C II Lambda2326 \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\> 1times10^-15 \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\> G270H \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\> 900 , O II Lambda3727 \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\> 5times10^-14 \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\> G400H \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\> 300 , O III Lambda4959 \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\> 7times10^-14 \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\> G570H \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\> 300 , endtabbing Exposure times have been estimated for the 1"\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ round aperture using theoretical emissivities relative to HBeta. HBeta fluxes are from our ground-based spectroscopy or data from the literature, mostly Campbell, Terlevich & Melnick (1986). Exposure estimates are also guided by the experience of Garnett Etal\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ (1995) who observed similar objects. We estimate exposure times of 1200 sec to detect O III Lambda1666 at the 8:1 level in NGC 4861, assuming a Lambda1700 continuum flux 12 times that at HBeta. We have scaled exposure times accordingly for the other galaxies based on HBeta flux with adjustments for different amounts reddening. Exposure times for the other gratings were chosen to obtain at least a signal to noise of 6:1 for the weakest crucial lines in each grating: C II Lambda2326 for the G270 grating, O II Lambda3727 for G400H. Nominal exposure times for G570H were selected with the goal of measuring the O III Lambda4959 and Lambda5007 lines in order to have a secondary estimate of the oxygen abundance in addition to the UV Lambda1661, Lambda1666 lines. This duplication will enable a strong check on the amount of reddening in the UV. HST UV images of NGC 4861 already exist in the archives and will facilitate target acquisition and aperture placement. We are acquiring ground based imaging for the other sources to aid in slit placement. We have applied for additional ground- based spectroscopic mapping and imaging that will allow us to precisely locate regions of highest nebulosity and avoid the contamination by the stellar continuum. Total number of orbits requested is based on use of a 3-stage (40 min overhead) acquisition strategy used in our Cycle 5 observations of NGC 5253, which will be necessary to acquire the regions of highest nebular surface brightness. Real_Time_Justification: None The proposed observations are part of the PI's Ph.D. thesis on elemental abundance pollution in starbursts (endorsement letter attached). In support of the proposed observations, we have obtained high quality, spectroscopic maps of the primary target NGC 4861 with the Calar Alto 3.5 telescope (Kobulnicky & Skillman 1995). We have proposed similar observations with 4m class telescopes for our other targets in order to match identically the positions of the HST observations, and obtain measurements of the electron temperatures, NII abundances, OII abundances and reddening. We have applied for additional ground-based spectroscopic mapping and imaging that will allow us to precisely locate regions of highest nebulosity for slit placement and avoid the contamination by the stellar continuum. Related to this project on elemental abundance pollution, we have acquired multi-frequency, scaled configuration VLA radio continuum observations of a sample of young starbursts to measure the thermal/non-thermal fractions as an additional ``age'' indicator. These data will help us to ascertain the probability of the ``delayed release'' hypothesis for N and C pollution. Calibration_Justification: Additional_Comments: Fixed_Targets Target_Number: 11 Target_Name: NGC4861-OFFSET Alternate_Names: Description: STAR Position: RA=12H 59M 5.35S +/- 0.05S,DEC=34D 52' 59.31" +/- 0.2",PLATE-ID=01PR Equinox: 2000 RV_or_Z: V=0 RA_PM: 0 Dec_PM: 0 Epoch: 1983 Annual_Parallax: 0 Flux: V = 12.9+/-0.3 B-V = 0.7 Comments: This object is in the GSC (ID=01175, PLATE-ID=01PR) Target_Number: 12 Target_Name: NGC4861-POS1 Alternate_Names: Description: EXT-CLUSTER,OB Association,EXT-MEDIUM, HII Region Position: RA-OFF=-5.03S+/- 0.05S,DEC-OFF=-135.3"+/- 0.2",FROM 11,PLATE-ID=01PR Equinox: 2000 RV_or_Z: V=+400 RA_PM: 0 Dec_PM: 0 Epoch: 1985 Annual_Parallax: 0 Flux: V = 13.1+/-0.5 B-V = 0.0 Comments: Target is a bright x-gal HII region Target_Number: 21 Target_Name: UM469-OFFSET Alternate_Names: Description: STAR, Position: RA=11H 57M 13.06S +/- 0.05S,DEC=02D 30' 3.7" +/- 0.2",PLATE-ID=019S Equinox: J2000 RV_or_Z: V = 17000 RA_PM: 0 Dec_PM: 0 Epoch: B1985 Annual_Parallax: 0 Flux: V = 14.4+/-0.5 B-V = 0.7 Comments: Target_Number: 22 Target_Name: UM469-POS1 Alternate_Names: Description: EXT-MEDIUM,HII REGION, Position: RA-OFF=-0.58S+/- 0.05S,DEC-OFF=-94.5"+/- 0.2",FROM 21,PLATE-ID=019S Equinox: J2000 RV_or_Z: V = 17000 RA_PM: 0 Dec_PM: 0 Epoch: B1985 Annual_Parallax: 0 Flux: V = 14.1+/-0.5 B-V = 0.0 Comments: Target is an x-gal HII region with some stellar continuum Target_Number: 31 Target_Name: T1345-420-OFFSET Alternate_Names: Description: STAR, Position: RA=13H 48M 23.42S +/- 0.05S,DEC=-42D 21' 44.6" +/- 0.2",PLATE-ID=01NZ Equinox: J2000 RV_or_Z: V = 900 RA_PM: 0 Dec_PM: 0 Epoch: B1975 Annual_Parallax: 0 Flux: V = 16.5+/-1.0 B-V = 0.7 Comments: Target_Number: 32 Target_Name: T1345-420-POS1 Alternate_Names: Description: EXT-MEDIUM,HII REGION, Position: RA-OFF=-01.10S+/- 0.05S,DEC-OFF=29.8"+/- 0.2",FROM 31,PLATE-ID=01NZ Equinox: J2000 RV_or_Z: V = 900 RA_PM: 0 Dec_PM: 0 Epoch: B1975 Annual_Parallax: 0 Flux: V = 13.9+/-0.3 B-V = 0.0 Comments: Target is an x-gal HII region Target_Number: 41 Target_Name: T1304-386-OFFSET Alternate_Names: Description: STAR, Position: RA=13H 7M 19.32S +/- 0.05S,DEC=-38D 54' 30.7" +/- 0.2",PLATE-ID=0162 Equinox: J2000 RV_or_Z: V = 0 RA_PM: 0 Dec_PM: 0 Epoch: B1979 Annual_Parallax: 0 Flux: V = 14.8+/-0.6 B-V = 0.7 Comments: Target_Number: 42 Target_Name: T1304-386-POS1 Alternate_Names: Description: EXT-MEDIUM,HII REGION, Position: RA-OFF=01.87S+/- 0.05S,DEC-OFF=-19.14"+/- 0.2",FROM 41,PLATE-ID=0162 Equinox: J2000 RV_or_Z: V = 4200 RA_PM: 0 Dec_PM: 0 Epoch: B1979 Annual_Parallax: 0 Flux: V = 14.6+/-0.5 B-V = 0.0 Comments: Target is an x-gal HII region Solar_System_Targets Generic_Targets Scan_Data Visits Visit_Number: 01 Visit_Requirements: PCS MODE FINE On_Hold_Comments: Visit_Comments: Exposure_Number: 11 Target_Name: NGC4861-OFFSET Config: FOS/RD Opmode: ACQ/BINARY Aperture: 4.3 Sp_Element: MIRROR Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 1.0 S Special_Requirements: ONBOARD ACQ FOR 12 Comments: Pattern Z on offset star Exposure_Number: 12 Target_Name: NGC4861-OFFSET Config: FOS/RD Opmode: ACQ/PEAK Aperture: 0.3 Sp_Element: MIRROR Wavelength: Optional_Parameters: SEARCH-SIZE-X=4,SEARCH-SIZE-Y=4,SCAN-STEP-X=0.17,SCAN-STEP-Y=0.17 Number_of_Iterations: 1 Time_Per_Exposure: 1 S Special_Requirements: ONBOARD ACQ FOR 14 Comments: Pattern E1 on offset star Exposure_Number: 14 Target_Name: NGC4861-POS1 Config: FOS/RD Opmode: ACCUM Aperture: 1.0 Sp_Element: G570H Wavelength: 4600-6800 Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 180 S Special_Requirements: Comments: Exposure_Number: 15 Target_Name: NGC4861-POS1 Config: FOS/RD Opmode: ACCUM Aperture: 1.0 Sp_Element: G190H Wavelength: 1600-2300 Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 2370 S Special_Requirements: Comments: Exposure_Number: 16 Target_Name: NGC4861-POS1 Config: FOS/RD Opmode: ACQ Aperture: 4.3 Sp_Element: MIRROR Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 60 S Special_Requirements: Comments: Exposure_Number: 17 Target_Name: NGC4861-POS1 Config: FOS/RD Opmode: ACCUM Aperture: 1.0 Sp_Element: G270H Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 1200 S Special_Requirements: Comments: Exposure_Number: 18 Target_Name: NGC4861-POS1 Config: FOS/RD Opmode: ACCUM Aperture: 1.0 Sp_Element: G400H Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 400 S Special_Requirements: EXPAND Comments: Visit_Number: 02 Visit_Requirements: PCS MODE FINE AFTER 24-Jun-1996 On_Hold_Comments: Visit_Comments: Exposure_Number: 21 Target_Name: UM469-OFFSET Config: FOS/RD Opmode: ACQ/BINARY Aperture: 4.3 Sp_Element: MIRROR Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 1.0 S Special_Requirements: ONBOARD ACQ FOR 22 Comments: Pattern Z on offset star Exposure_Number: 22 Target_Name: UM469-OFFSET Config: FOS/RD Opmode: ACQ/PEAK Aperture: 0.3 Sp_Element: MIRROR Wavelength: Optional_Parameters: SEARCH-SIZE-X=4,SEARCH-SIZE-Y=4,SCAN-STEP-X=0.17,SCAN-STEP-Y=0.17 Number_of_Iterations: 1 Time_Per_Exposure: 0.4 S Special_Requirements: ONBOARD ACQ FOR 24 Comments: Pattern E1 on offset star Exposure_Number: 24 Target_Name: UM469-POS1 Config: FOS/RD Opmode: ACCUM Aperture: 1.0 Sp_Element: G400H Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 960 S Special_Requirements: EXPAND Comments: Exposure_Number: 25 Target_Name: UM469-POS1 Config: FOS/RD Opmode: ACCUM Aperture: 1.0 Sp_Element: G190H Wavelength: 1600-2300 Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 2340 S Special_Requirements: EXPAND Comments: Exposure_Number: 26 Target_Name: UM469-POS1 Config: FOS/RD Opmode: ACCUM Aperture: 1.0 Sp_Element: G190H Wavelength: 1600-2300 Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 1500 S Special_Requirements: Comments: Exposure_Number: 27 Target_Name: UM469-POS1 Config: FOS/RD Opmode: ACCUM Aperture: 1.0 Sp_Element: G570H Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 700 S Special_Requirements: EXPAND Comments: Exposure_Number: 28 Target_Name: UM469-POS1 Config: FOS/RD Opmode: ACQ Aperture: 4.3 Sp_Element: MIRROR Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 60 S Special_Requirements: Comments: Exposure_Number: 29 Target_Name: UM469-POS1 Config: FOS/RD Opmode: ACCUM Aperture: 1.0 Sp_Element: G270H Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 1800 S Special_Requirements: EXPAND Comments: Visit_Number: 03 Visit_Requirements: PCS MODE FINE AFTER 24-Jun-1996 On_Hold_Comments: Visit_Comments: Exposure_Number: 31 Target_Name: T1345-420-OFFSET Config: FOS/RD Opmode: ACQ/BINARY Aperture: 4.3 Sp_Element: MIRROR Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 20 S Special_Requirements: ONBOARD ACQ FOR 32 Comments: Pattern A on offset star Exposure_Number: 32 Target_Name: T1345-420-OFFSET Config: FOS/RD Opmode: ACQ/PEAK Aperture: 0.3 Sp_Element: MIRROR Wavelength: Optional_Parameters: SEARCH-SIZE-X=4,SEARCH-SIZE-Y=4,SCAN-STEP-X=0.17,SCAN-STEP-Y=0.17 Number_of_Iterations: 1 Time_Per_Exposure: 4 S Special_Requirements: ONBOARD ACQ FOR 34 Comments: Pattern E1 on offset star Exposure_Number: 34 Target_Name: T1345-420-POS1 Config: FOS/RD Opmode: ACQ Aperture: 4.3 Sp_Element: MIRROR Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 60 S Special_Requirements: Comments: Exposure_Number: 35 Target_Name: T1345-420-POS1 Config: FOS/RD Opmode: ACCUM Aperture: 1.0 Sp_Element: G570H Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 410 S Special_Requirements: EXPAND Comments: Exposure_Number: 36 Target_Name: T1345-420-POS1 Config: FOS/RD Opmode: ACCUM Aperture: 1.0 Sp_Element: G190H Wavelength: 1600-2300 Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 2440 S Special_Requirements: Comments: Exposure_Number: 37 Target_Name: T1345-420-POS1 Config: FOS/RD Opmode: ACCUM Aperture: 1.0 Sp_Element: G270H Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 1400 S Special_Requirements: Comments: Exposure_Number: 38 Target_Name: T1345-420-POS1 Config: FOS/RD Opmode: ACCUM Aperture: 1.0 Sp_Element: G400H Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 790 S Special_Requirements: EXPAND Comments: Visit_Number: 04 Visit_Requirements: PCS MODE FINE AFTER 24-Jun-1996 On_Hold_Comments: Visit_Comments: Exposure_Number: 41 Target_Name: T1304-386-OFFSET Config: FOS/RD Opmode: ACQ/BINARY Aperture: 4.3 Sp_Element: MIRROR Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 4 S Special_Requirements: ONBOARD ACQ FOR 42 Comments: Pattern A on offset star Exposure_Number: 42 Target_Name: T1304-386-OFFSET Config: FOS/RD Opmode: ACQ/PEAK Aperture: 0.3 Sp_Element: MIRROR Wavelength: Optional_Parameters: SEARCH-SIZE-X=4,SEARCH-SIZE-Y=4,SCAN-STEP-X=0.17,SCAN-STEP-Y=0.17 Number_of_Iterations: 1 Time_Per_Exposure: 1 S Special_Requirements: ONBOARD ACQ FOR 44 Comments: Pattern B1 on offset star Exposure_Number: 44 Target_Name: T1304-386-POS1 Config: FOS/RD Opmode: ACQ Aperture: 4.3 Sp_Element: MIRROR Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 60 S Special_Requirements: Comments: Exposure_Number: 45 Target_Name: T1304-386-POS1 Config: FOS/RD Opmode: ACCUM Aperture: 1.0 Sp_Element: G570H Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 440 S Special_Requirements: EXPAND Comments: Exposure_Number: 46 Target_Name: T1304-386-POS1 Config: FOS/RD Opmode: ACCUM Aperture: 1.0 Sp_Element: G190H Wavelength: 1600-2300 Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 2390 S Special_Requirements: EXPAND Comments: Exposure_Number: 47 Target_Name: T1304-386-POS1 Config: FOS/RD Opmode: ACCUM Aperture: 1.0 Sp_Element: G270H Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 1450 S Special_Requirements: Comments: Exposure_Number: 48 Target_Name: T1304-386-POS1 Config: FOS/RD Opmode: ACCUM Aperture: 1.0 Sp_Element: G400H Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 700 S Special_Requirements: EXPAND Comments: Data_Distribution ! Defaults indicated; change if desired Medium: 8MM Blocking_Factor: 10 Ship_To: PI_Address Ship_Via: UPS Recipient_Email: ! Let us know what you think of this template and software! ! Please send a list of your likes and dislikes to your Program Coordinator